کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1532206 1512025 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spin polarized itinerant electrons in Ca2FeMoO6 double perovskites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Spin polarized itinerant electrons in Ca2FeMoO6 double perovskites
چکیده انگلیسی
We report on magnetic studies of the double perovskite Ca2FeMoO6 in its paramagnetic state. It is found that the effective magnetic moment, extracted from the Curie constant, is magnetic field dependent and it is smaller than that expected in a simple ionic scenario. These experimental results, which are in agreement with early reports on Sr2FeMoO6, are interpreted as a direct evidence of the antiferromagnetic coupling and polarization of the conduction band in these oxides. A simple mean field model accounts for these observations and enlightens the relevance of itinerant carriers on the strength of the magnetic coupling in these oxides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 126, Issues 2–3, 25 January 2006, Pages 279-282
نویسندگان
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